new to or rare in the British Seas. 101 



berland (A, M. N.) ; Lough Foyle, Ireland, 15 ftithoms 

 (' Porcupine ' Expedition). 



In Norway I have dredged it at Drobak, in the Christiania 

 Fiordj and off Lervig, in the Hardauger Fiord ; also at Floro. 

 Sars has found it as far north as the Lofoten Islands. , 



Hemilamprops cristata^ Gr. O. Sars. 



Lamprops cristata, G. O. Sars, " Nye Dybvandscrustaceer fra Lofoten " 



(Vid. Selsk. Forhaudl. 1869), p. 13. 

 La))iprops cristata, Norman, *' Crustacea Cumacea of the * Lightning, 



' Porcupine,' and * Valorous ' Expeditions/' Ann. & Mag. Nat. Hist. 



ser. 5, vol. iii. 1879, p. 68. 

 Heiiiilamprops ci'istata, G. 0. Sars, " Oversigt af Norges Crustaceer " 



(Christ. Vidensk. Forhandl. 1862), p. 11. 



Firth of Clyde, 1860 {Mr. D. Robertson) ; south of Rockall, 

 lat. 56° r N., long. 14° 19' W., 630 fathoms {'Forcupijie; 

 1869). 



On the Norwegian coast I have taken it in 150 to 180 

 fathoms, off Midto lighthouse, and in Stoksund, 80 to 100 

 fathoms, both in the Hardanger Fiord. 



Sars has also dredged it in the Hardanger Fiord off the 

 island of Huso, 100 to 105 fathoms^ and at Lofoten in 120 to 

 200 fathoms. 



There are six European species belonging to these two 

 genera. The genera are distinguished from all other Cumacea 

 by having a well-developed, long, flattened, linguiform telson, 

 which is broad at the extremity and terminates in several 

 spines ; the carapace is small, the first tliree pairs of feet have 

 fully developed natatory palps, and the two following pairs 

 two-jointed rudimentary palps. In the male the antennules 

 have a bunch of cilia at the extremity of the peduncle, and 

 the pleon is furnished with three pairs of natatory feet. 



The following more salient features will enable the species 

 to be separated. It is probable that more of these forms await 

 discovery in our own seas. 



Lamjrrops fasciata, G. 0. Sars. Carapace with three well- 

 developed oblique folds on the sides. Telson with one or 

 two pairs of lateral spines, and terminating in five spines. — 

 Britain, Norway. 



Lamprojys fuscata, G. O. Sars. Carapace smooth, rostrum 

 acutely produced. Telson with one or two pairs of lateral 

 spines, terminating in five spines. — Norway. 



Hemilampi'ops rosea (Norman). Carapace smooth, rostrum 

 not produced, the front forming nearly a right angle. Eyes 

 well developed. Telson not much contracted towards the 

 extremity, with one or two pairs of lateral spines, and termina- 



